Counting device and printing attachment for current impulses succeeding each other at high speed

Claim 1

IN A COUNTING AND PRINTING MECHANISM FOR PROCESSING ELECTRIC CURRENT PULSES OCCURING IN RAPID SUCCESSION, THE COMBINATION COMPRISING A FRAME; AN ENERGIZABLE MAGNET; AN ARMATURE PIVOTALLY MOUNTED ON SAID FRAME INTERMEDIATE ITS ENDS THUS CONSTITUTING A TWO ARM LEVER WITH ONE ARM THEREOF BEING ATTRACTED BY SAID MAGNET UPON ENERGIZATION THEREOF; MEANS FOR ADJUSTABLY MOUNTING SAID MAGNET ON SAID FRAME SO AS TO ADJUST THE DISTANCE BETWEEN SAID MAGNET AND SAID ARMATURE; A STEP MECHANISM LINKED TO SAID ONE END OF SAID ARMATURE; A TYPE WHEEL ROTATABLE BY SAID STEP MECHANISM AND A PRINTING MECHANISM OPERATIVELY ASSOCIATED WITH SAID TYPE WHEEL; A TENSION SPRING CONNECTED WITH ONE END TO THE OTHER ARM OF SAID ARMATURE AND URGING SAID ARMATURE TO ITS DE-ENERGIZED POSITION; AND CONTROLLABLE MEANS CONNECTED TO THE OTHER END OF SAID SPRING FOR SELECTIVELY RELIEVING THE TENSION THEREOF.